# Dynatrace Managed firewall: TCP or HTTPS?

**URL:** <https://community.dynatrace.com/t/dynatrace-managed-firewall-tcp-or-https/38101>\
**Category:** Dynatrace Managed\
**Tags:** installation, dynatrace-managed, oneagent, documentation\
**Created:** [January 23, 2023, 6:51am UTC](https://community.dynatrace.com/t/dynatrace-managed-firewall-tcp-or-https/38101 "2023-01-23T06:51:07Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![VenkataSainath](https://avatars.discourse-cdn.com/v4/letter/v/53a042/32.png) [@VenkataSainath](https://community.dynatrace.com/u/VenkataSainath)\
**Post date:** [January 23, 2023, 6:51am UTC](https://community.dynatrace.com/t/dynatrace-managed-firewall-tcp-or-https/38101/1 "2023-01-23T06:51:07Z")

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On Dynatrace Managed deployment page, we could see the firewall port requirements will be https 9999 but we generally use TCP port. Any specific reason to mention https 9999?

 ![Capture.PNG](https://global.discourse-cdn.com/dynatrace/original/3X/d/9/d9771387ddc6cfdae7df4eaf6c57b441cfc1c9a9.png)

[Managed deployments](https://docs.dynatrace.com/managed/shortlink/managed-deployment-scenarios)

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<div class="post-metadata">

**Author:** ![Julius\_Loman](https://dub1.discourse-cdn.com/dynatrace/user_avatar/community.dynatrace.com/julius_loman/32/51_2.png) [@Julius\_Loman](https://community.dynatrace.com/u/Julius_Loman)\
**Post date:** [January 23, 2023, 7:32am UTC](https://community.dynatrace.com/t/dynatrace-managed-firewall-tcp-or-https/38101/2 "2023-01-23T07:32:01Z")

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The http(s) protocolo (OPI layer4) is based on TCP (OSI layer3), so it’s TCP port 9999 anyway.